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About product and suppliers:
        Alibaba.com offers 194,371 screw making machine products. About 54% of these are plastic extruders, 1% are thread rolling machines, and 1% are other metal & metallurgy machinery. 

A wide variety of screw making machine options are available to you, such as free samples, paid samples. 

There are 194,317 screw making machine suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Taiwan, which supply 99%, 1%, and 1% of screw making machine respectively. 

Screw making machine products are most popular in Africa, Domestic Market, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 37,570 with ISO9001, 19,927 with Other, and 1,174 with ISO14001 certification.